CN102499801B - Delivery and release system of covered stent - Google Patents

Delivery and release system of covered stent Download PDF

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Publication number
CN102499801B
CN102499801B CN201110319319.7A CN201110319319A CN102499801B CN 102499801 B CN102499801 B CN 102499801B CN 201110319319 A CN201110319319 A CN 201110319319A CN 102499801 B CN102499801 B CN 102499801B
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CN
China
Prior art keywords
described
end
seal wire
push pipe
outer tube
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Application number
CN201110319319.7A
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Chinese (zh)
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CN102499801A (en
Inventor
朱清
彭大冬
罗七一
袁振宇
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上海微创医疗器械(集团)有限公司
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Priority to CN201110319319.7A priority Critical patent/CN102499801B/en
Publication of CN102499801A publication Critical patent/CN102499801A/en
Application granted granted Critical
Publication of CN102499801B publication Critical patent/CN102499801B/en

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Abstract

The invention discloses a delivery and release system of a covered stent, which comprises an outer tube, a top tube, an inner tube, a guide wire bushing, a conical head, a control coil, a control guide wire and a guide wire flexible buckle, wherein the outer tube, the top tube and the inner tube are sequentially distributed from the outer side to the inner side, and a guide wire hole is arranged on the top tube; one end of the inner tube extends out of the top tube and is fixed with the conical head, and the control coil is arranged on the conical head; the guide wire bushing is sleeved on the inner tube which is between the top tube and the conical head; one end of the control guide wire is fixed with the outer tube, the other end of the control guide wire penetrates through the guide wire hole, the guide wire bushing and the movable buckle of the control coil to be connected with the conical head, and the guide wire flexible buckle is arranged on the control guide wire. When the system releases the covered stent, part or a whole covered section can be released under the condition that the end part of the covered stent is bound, so the probability of covered stent displacement or exposed section overturning which is caused by blood flow impact is reduced. In addition, when a near end is not released, the covered stent also can be adjusted, so the stent is positioned more accurately.

Description

A kind of overlay film frame is carried and delivery system

Technical field

The application relates to technical field of medical instruments, particularly relates to a kind of overlay film frame and carries and delivery system.

Background technology

In blood vessel intervention operation, usually need intravascular stent to be implanted in human vas, to realize, angiopathy is carried out to interventional therapy.But in blood vessel intervention operation, in the time intravascular stent being carried the laggard row that puts in place discharge, existing drawing and pulling type delivery mode, at mount proximal end and far-end all without any constraint, like this in the time discharging, usually there will be support because being subject to the impact of blood flow to cause the phenomenon of displacement or naked section of turnover, especially, at aortic arch or near in the trunk of cardia, occur that the probability of displacement or naked section of turnover is larger; Existing another kind of binding-type delivery mode, although be from the centre of support to two sections of releases, can not cause naked section of turnover, cannot adjust the position of support, and there will be because support cripetura causes support displacement after discharging.

Summary of the invention

In view of this, the embodiment of the present application provides a kind of overlay film frame to carry and delivery system, has the problem of displacement or naked section of turnover to solve existing support in the time discharging.

To achieve these goals, the technical scheme that the embodiment of the present application provides is as follows:

A kind of overlay film frame is carried and delivery system, comprising: the flexible button of outer tube, push pipe, inner tube, seal wire sleeve pipe, conical head, control coil, control seal wire and seal wire, wherein:

Described push pipe is positioned at described outer tube, described inner tube is positioned at described push pipe, on described push pipe far-end sidewall, be provided with thread eye, the near-end of described inner tube stretches out described push pipe and fixes with described conical head, and described seal wire casing pipe sleeve is located in the described inner tube between described push pipe and conical head; On described conical head, be provided with the control coil for fettering overlay film frame end, and can form a knot that can be undone by a pull behind described control coil constraint overlay film frame end;

Described control seal wire one end and described outer tube fix, the other end is connected with described conical head through the knot that can be undone by a pull on described thread eye, seal wire sleeve pipe and described control coil, on described control seal wire, be provided with the flexible button of telescopic seal wire, and in the cavity of the flexible button bit of described seal wire between described inner tube and push pipe.

Preferably, described control seal wire comprises: near-end seal wire and distal guide wire, wherein:

The end of described distal guide wire far-end and described outer tube fix, and the end of near-end is connected through described thread eye and with the flexible button of described seal wire;

The end of described near-end wire distal is connected with the flexible button of described seal wire, and the end of near-end is connected with described conical head through the knot that can be undone by a pull on described seal wire sleeve pipe and described control coil.

Preferably, the flexible button of described seal wire comprises: seal wire cover joint, the first conductive filament head and the second conductive filament head, wherein:

On described seal wire cover joint, be provided with through hole;

The end of described distal guide wire near-end is through the through hole on described seal wire cover joint, and described the first conductive filament head fixes;

The through hole that the end of described near-end wire distal is saved through described seal wire cover, and fix with described the second conductive filament head;

The diameter of described the first conductive filament head and the second conductive filament head is all greater than the diameter of the upper through hole of described seal wire cover joint.

Preferably, be provided with seal wire slot on described conical head, the other end of described control seal wire is inserted in described seal wire slot after passing the knot that can be undone by a pull on described thread eye, seal wire sleeve pipe and described control coil, is connected with described conical head.

Preferably, the material of described inner tube is at least one in polyether-ether-ketone, rustless steel, Nitinol.

Preferably, the material of described seal wire sleeve pipe is polyethylene terephthalate, fluorinated ethylene propylene copolymer or politef.

Preferably, described system further comprises: outer tube handle, described outer tube handle is fixed on the end of described distal outer tube, and sealing mutually between described outer tube handle and described push pipe.

Preferably, on described outer tube handle, be provided with the tube for transfusion that space is connected between described outer tube and push pipe.

Preferably, described system further comprises: push pipe handle, and the far-end of described push pipe stretches out described outer tube, and described push pipe handle is fixed on the end of described push pipe far-end.

Preferably, described system further comprises: interior pipe connections, and the far-end of described inner tube stretches out described push pipe, and described interior pipe connections is fixed on the end of described inner tube far-end.

From above technical scheme, this overlay film frame that the embodiment of the present application provides is carried and delivery system, in the time discharging overlay film frame, can be in the case of the end constraint of overlay film frame near-end, overlay film frame part is discharged, because the end of near-end in the time discharging is in bond, in the time discharging, be subject to the impulsive force of blood flow so can reduce overlay film frame, and then can reduce the probability that displacement or naked section of turnover appear in overlay film frame.In addition, after overlay film frame overlay film section is partly or entirely discharged, can also adjust the position of overlay film frame, avoid occurring the problem of cripetura after overlay film frame release, and then there will not be support displacement.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

The overlay film frame that Fig. 1 provides for the application is carried and the structural representation of the specific embodiment of delivery system;

The overlay film frame that Fig. 2 provides for the application carry and delivery system in a kind of structural representation of the specific embodiment of inner tube;

The overlay film frame that Fig. 3 provides for the application carry and delivery system in a kind of structural representation of the specific embodiment of conical head;

The overlay film frame that Fig. 4 provides for the application carry and delivery system in a kind of structural representation of the specific embodiment of push pipe;

Fig. 5 is the local enlarged diagram of I in Fig. 4;

The overlay film frame that Fig. 6 provides for the application is carried and the structural representation of a kind of specific embodiment of delivery system middle external tube;

The overlay film frame that Fig. 7 provides for the application carry and delivery system in the structural representation of the flexible a kind of specific embodiment of detaining of seal wire;

The overlay film frame that Fig. 8 provides for the application carry and delivery system in the flexible structural representation being buckled in before overlay film frame release of seal wire;

The overlay film frame that Fig. 9 provides for the application carry and delivery system in the flexible structural representation being buckled in after the release of overlay film frame part of seal wire.

The specific embodiment

In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Based on the embodiment in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the application's protection.

Term "and/or" herein, is only a kind of incidence relation of describing affiliated partner, and expression can exist three kinds of relations, and for example, A and/or B, can represent: individualism A exists A and B, these three kinds of situations of individualism B simultaneously.In addition, character "/" herein, generally represents that forward-backward correlation is to liking a kind of relation of "or".In addition, " far-end " of appearance herein refers to one end near operator in the time of clinical manipulation, and " near-end " refers near patient or enter the one end in patient body.

The overlay film frame that Fig. 1 provides for the application is carried and the structural representation of the specific embodiment of delivery system.

As shown in Figure 1, this support is carried and delivery system comprises: outer tube 1, push pipe 2, inner tube 3, control seal wire 4, the flexible button of seal wire (not shown), seal wire sleeve pipe 5, conical head 6 and control coil 7, wherein: outer tube 1, push pipe 2 and inner tube 3 threes are coaxial, and inner tube 3 is arranged in push pipe 2, and push pipe 2 is arranged in outer tube 1.

The overlay film frame that Fig. 2 provides for the application carry and delivery system in a kind of structural representation of the specific embodiment of inner tube.As shown in Figure 2, be fixed with conical head 6 in the end of inner tube 3 near-ends, and be arranged with seal wire sleeve pipe 5 in the inner tube 3 between end and the conical head 6 of push pipe 2 near-ends.In addition, shown in Fig. 1, the end of inner tube 2 far-ends is positioned at the outside of push pipe 2.The effect of conical head 6 is in the time carrying, to reduce the resistance of this system in body lumen, convenient conveying.As shown in Figure 3, in figure, 100 is overlay film frame, and control coil 7 is arranged on conical head 6, and its effect is that the end of overlay film frame 100 near-ends is fettered, and control coil 7 can form a knot that can be undone by a pull after constraint.As shown in Figure 3, on conical head 6, be also provided with seal wire slot 8, the effect of seal wire slot 8 is fixing ends of controlling seal wire 4, adopts the fixing seal wire of controlling of seal wire slot, control when seal wire 4 when pulling to far-end like this, can be conveniently by the end of controlling seal wire 4 by extracting in seal wire slot 8.In the embodiment of the present application, the material of inner tube 3 can be at least one in polyether-ether-ketone, rustless steel, Nitinol.

The overlay film frame that Fig. 4 provides for the application carry and delivery system in a kind of structural representation of the specific embodiment of push pipe.As shown in Figure 4, be also provided with thread eye 21 on the sidewall of push pipe 2 far-ends, and the end section of push pipe 2 near-ends is " protruding " font, the diameter of the end of push pipe 2 near-ends is less than the diameter at other position of push pipe.Because inner tube 3 is stretched out from the end of push pipe 2 near-ends and is connected with conical head 6, while fettering overlay film frame like this, overlay film frame 100 can be strapped in the upper and inner tube 3 of less one section of the end diameter of push pipe 2 near-ends.In addition, in the embodiment of the present application, in order to improve the flexible of push pipe 2 self, as shown in Figure 4, the proximal part of push pipe 2 adopts spring 22 to make, and like this in the time carrying, push pipe 2 can be according to the degree of crook of body lumen and bending.

Fig. 5 is the local enlarged diagram of I in Fig. 4, as shown in Figure 5, in other embodiment of the application, in order to increase the intensity of push pipe 2, inside at push pipe 2 can also arrange push pipe reinforced pipe 9, the outer wall of push pipe reinforced pipe 9 contacts with the inwall of push pipe 2, and the position corresponding with thread eye 21 also arranges porose on push pipe reinforced pipe 9.

The overlay film frame that Fig. 6 provides for the application is carried and the structural representation of a kind of specific embodiment of delivery system middle external tube.Fig. 7 is the local enlarged diagram of the flexible button of seal wire in Fig. 6.The effect of outer tube 1 is that overlay film frame to be conveyed is compressed therein, and the diameter of overlay film frame is reduced, and reduces transporting resistance.As shown in Figure 6 and Figure 7, in figure, 10 is the flexible button of seal wire, in the cavity of the flexible button 10 of seal wire between push pipe 2 and inner tube 3, controlling seal wire 4 comprises: distal guide wire 41 and near-end seal wire 42, wherein: end and the outer tube 1 of distal guide wire 41 far-ends fix, and the end of distal guide wire 41 far-ends and the fixed position of outer tube 1 along described push pipe by near-end to the rear that is positioned at described thread eye 21 on distal direction, the end of distal guide wire 41 near-ends is penetrated in push pipe 2 by thread eye 21, and the end of near-end is connected with the flexible button 10 of seal wire; The flexible button 10 of the end of near-end seal wire 42 far-ends and seal wire is connected, the gap of the end of near-end through seal wire sleeve pipe 5 and inner tube 3, and pass the knot that can be undone by a pull of control coil 7, be finally inserted in the seal wire slot 8 on conical head 6.In the time pulling outer tube 1 to distal direction, can drive control seal wire 4 to move to distal direction, and after the end of near-end seal wire 42 near-ends is by the interior disengaging of seal wire slot 8, can from the knot that can be undone by a pull of control coil 7, unclamp, control coil 7 is discharged, and then realize the end release of overlay film frame constraint.

As shown in Figure 7, the flexible button 10 of seal wire comprises: seal wire cover joint 11, the first conductive filament head 43 and the second conductive filament head 44, wherein: on seal wire cover joint 11, be provided with through hole, the near-end of distal guide wire 41 is through the through hole on seal wire cover joint 11, and fix with the first conductive filament head 43, the far-end of near-end seal wire 42 is through the through hole on seal wire cover joint 11, and fix with the second conductive filament head 44, and the diameter of the first conductive filament head 43 and the second conductive filament head 44 is all greater than the internal diameter of seal wire cover joint 11, to prevent the slippage from seal wire cover joint 11 of distal guide wire 41 and near-end seal wire 42.In the embodiment of the present application, the through hole arranging on seal wire cover joint 11 can be one, distal guide wire 41 and near-end seal wire 42 are all arranged in this through hole like this, in addition, the through hole arranging on seal wire cover joint 11 can also be two, and distal guide wire 41 and near-end seal wire 42 can be separately positioned in different through holes like this.

This overlay film frame conveying that the embodiment of the present application provides and delivery system are before carrying and discharging, use outer tube 1 overlay film frame 100 to be strapped in the inner tube 3 between end and the conical head 6 of push pipe 2 near-ends, and use control coil 7 that the end of overlay film frame 100 near-ends is fettered, after control coil 7 constraints, form knot that can be undone by a pull; The end of near-end seal wire 42 near-ends passes from push pipe 2 and the gap of inner tube 3 near-ends, and passes in seal wire sleeve pipe 5, then, through the knot that can be undone by a pull forming after control coil 7 constraints, is finally inserted in seal wire slot 8.Here the effect of seal wire sleeve pipe 5 is that 42 constraints of near-end seal wire are close in inner tube 3, such as, so the material of seal wire sleeve pipe 5 should be selected inner wall smooth, toughness better and be difficult for the macromolecule tubing of fold, polyethylene terephthalate, fluorinated ethylene propylene copolymer or politef etc.In addition, as shown in Figure 8, the first conductive filament head 43, apart from having one section of predeterminable range between seal wire cover joint 11, is designated as the first stroke to the position relationship of the first conductive filament head 43, the second conductive filament head 44 and seal wire cover joint 11.In the time carrying, the far-end of hand-held this overlay film frame conveying and delivery system, is inserted into conical head 6 in body lumen, just overlay film frame can be transported in human body.

After overlay film frame conveying is put in place, by fixing to push pipe 2 and inner tube 3, and pull outer tube 1 to distal direction, the overlay film frame being fettered by outer tube 1 will discharge, because the end of overlay film frame 100 near-ends is fettered by control coil 7, and before the first conductive filament head 43 does not contact with seal wire cover joint 11, be that the distance of the relative motion between outer tube 1 and inner tube 3 is while being less than the first stroke, seal wire cover joint 11 and near-end seal wire 44 can not move, so now 100 of overlay film frames can partly be discharged, the end of its near-end can not be released, so now operator can adjust overlay film frame, avoid support after release, to occur the problem of cripetura.

Relative distance between the first conductive filament head 43 and inner tube 3 equals after the first stroke, the first conductive filament head 43, the position relationship of the second conductive filament head 44 and seal wire cover joint 11 as shown in Figure 9, after in figure, the first conductive filament head 43 will contact with seal wire cover joint 11, pull outer tube 1 if now continued to distal direction, distal guide wire 41 will drive 11 motions together of seal wire cover joint so, and then drive near-end seal wire 42 to move together, and after the end of near-end seal wire 42 near-ends is pulled out in by the seal wire slot 8 on conical head 6, will unclamp from the knot that can be undone by a pull of control coil 7, control coil 7 is unclamped, by the end release of overlay film frame 100 near-ends.

Compared with prior art, this overlay film frame that the embodiment of the present application provides is carried and delivery system, in the time discharging overlay film frame, the near-end of overlay film frame is fettered by control coil, in the time that the distance of the motion of outer tube is less than the first stroke, overlay film frame can partly be discharged, but the end of overlay film frame near-end can not be released, reduce overlay film frame end and be subject to the impulsive force of blood flow, and then reduced the probability of support appearance displacement or naked section of turnover; In addition, due to after overlay film frame partly discharged, its end is still in bond, so can also adjust the position of overlay film frame, has solved the problem that causes support displacement due to support cripetura.In a word, the distance that this overlay film frame is carried and delivery system can have more demand adjustment the first stroke is controlled mount proximal end d/d opportunity.

In addition,, in other embodiment of the application, as shown in Figure 1, this overlay film frame is carried and delivery system can further include:

Outer tube handle 12, outer tube handle 12 is fixed on the end of outer tube 1 far-end, and sealing mutually between outer tube handle 12 and push pipe 2, for example, can between outer tube handle 12 and push pipe 2, sealing ring be set.The end of distal guide wire 41 far-ends can be fixed on outer tube handle 12, and the effect of outer tube handle 12 is to facilitate the hand-held outer tube of operation technique personnel to carry out releasing operation.In addition, as shown in Figure 6, on outer tube handle 12, can also be provided with tube for transfusion 13, between tube for transfusion 13 and outer tube 1 and push pipe 2, space is connected, and its effect is conveniently in the time carrying and discharge overlay film frame, patient to be infused.

In other embodiment of the application, as shown in Figure 1, this overlay film frame is carried and delivery system can further include:

Push pipe handle 14, the far-end of push pipe 2 stretches out outer tube 1, push pipe handle 14 is fixed on the end of push pipe 2 far-ends, as shown in Figure 4, the effect of push pipe handle 14 is that push pipe handle far-end has sealing ring, is used for fixing inner tube, prevents that inner tube from sliding axially, affect support and discharge and locate, sealed inner tube and push pipe simultaneously.

In other embodiment of the application, as shown in Figure 1, this overlay film frame is carried and delivery system can further include:

Interior pipe connections 15, the far-end of inner tube 3 stretches out push pipe 2, interior pipe connections 15 is fixed on the end of inner tube 3 far-ends, as shown in Figure 2, the effect of interior pipe connections 15 is to provide female Luer, and handled easily person utilizes the internal tube cavity of female Luer (guidewire lumen) on interior pipe connections 15 rinse or infiltrate before use.

In addition, as shown in Figure 1, the outer tube handle 12 of foregoing description, push pipe handle 14 and interior pipe connections 15 can also be arranged in this overlay film frame simultaneously and carry and delivery system.

The above is only the application's preferred implementation, makes those skilled in the art can understand or realize the application.To be apparent to one skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the case of not departing from the application's spirit or scope, realize in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. overlay film frame is carried and a delivery system, it is characterized in that, comprising: the flexible button of outer tube, push pipe, inner tube, seal wire sleeve pipe, conical head, control coil, control seal wire and seal wire, wherein:
Described push pipe is positioned at described outer tube, described inner tube is positioned at described push pipe, on described push pipe far-end sidewall, be provided with thread eye, the near-end of described inner tube stretches out described push pipe and fixes with described conical head, and described seal wire casing pipe sleeve is located in the described inner tube between described push pipe and conical head; On described conical head, be provided with the control coil for fettering overlay film frame end, and form a knot that can be undone by a pull behind described control coil constraint overlay film frame end;
Described control seal wire one end and described outer tube fix, the other end is connected with described conical head through the knot that can be undone by a pull on described thread eye, seal wire sleeve pipe and described control coil, on described control seal wire, be provided with the flexible button of telescopic seal wire, and in the cavity of the flexible button bit of described seal wire between described inner tube and push pipe.
2. system according to claim 1, is characterized in that, described control seal wire comprises: near-end seal wire and distal guide wire, wherein:
The end of described distal guide wire far-end and described outer tube fix, and the end of near-end is connected through described thread eye and with the flexible button of described seal wire;
The end of described near-end wire distal is connected with the flexible button of described seal wire, and the end of near-end is connected with described conical head through the knot that can be undone by a pull on described seal wire sleeve pipe and described control coil.
3. system according to claim 2, is characterized in that, the flexible button of described seal wire comprises: seal wire cover joint, the first conductive filament head and the second conductive filament head, wherein:
On described seal wire cover joint, be provided with through hole;
The through hole that the end of described distal guide wire near-end is saved through described seal wire cover, and fix with described the first conductive filament head;
The through hole that the end of described near-end wire distal is saved through described seal wire cover, and fix with described the second conductive filament head;
The diameter of described the first conductive filament head and the second conductive filament head is all greater than the diameter of the upper through hole of described seal wire cover joint.
4. system according to claim 1, it is characterized in that, on described conical head, be provided with seal wire slot, the other end of described control seal wire is inserted in described seal wire slot after passing the knot that can be undone by a pull on described thread eye, seal wire sleeve pipe and described control coil, is connected with described conical head.
5. system according to claim 1, is characterized in that, the material of described inner tube is at least one in polyether-ether-ketone, rustless steel, Nitinol.
6. system according to claim 1, is characterized in that, the material of described seal wire sleeve pipe is polyethylene terephthalate, fluorinated ethylene propylene copolymer or politef.
7. system according to claim 1, is characterized in that, further comprises: outer tube handle, described outer tube handle is fixed on the end of described distal outer tube, and sealing mutually between described outer tube handle and described push pipe.
8. system according to claim 7, is characterized in that, on described outer tube handle, is provided with the tube for transfusion that space is connected between described outer tube and push pipe.
9. according to the system described in claim 1,7 or 8, it is characterized in that, further comprise: push pipe handle, the far-end of described push pipe stretches out described outer tube, and described push pipe handle is fixed on the end of described push pipe far-end.
10. according to the system described in claim 1,7 or 8, it is characterized in that, further comprise: interior pipe connections, the far-end of described inner tube stretches out described push pipe, and described interior pipe connections is fixed on the end of described inner tube far-end.
CN201110319319.7A 2011-10-19 2011-10-19 Delivery and release system of covered stent CN102499801B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110319319.7A CN102499801B (en) 2011-10-19 2011-10-19 Delivery and release system of covered stent

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Application Number Priority Date Filing Date Title
CN201110319319.7A CN102499801B (en) 2011-10-19 2011-10-19 Delivery and release system of covered stent

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CN102499801B true CN102499801B (en) 2014-07-02

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102688112B (en) * 2012-06-29 2015-03-04 东莞市博迪思迈医疗器械有限公司 Support delivery device
CN102764165B (en) * 2012-08-13 2015-01-07 宁波健世生物科技有限公司 Percutaneous aorta or aorta valve stent conveying system
CN104644288B (en) * 2013-11-18 2017-04-12 上海微创心通医疗科技有限公司 External loading tube of implant and implant delivery system
CN106580530B (en) * 2016-12-20 2018-11-16 有研医疗器械(北京)有限公司 One kind discharging membrane-covered support conveying system and method behind pinpoint remote, proximal end
CN107397575A (en) * 2017-08-25 2017-11-28 江西理工大学 sheath for thrombus crushing system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5415664A (en) * 1994-03-30 1995-05-16 Corvita Corporation Method and apparatus for introducing a stent or a stent-graft
CN2715700Y (en) * 2004-07-28 2005-08-10 微创医疗器械(上海)有限公司 Rapid changing and transporting system for self expansion type medical stent
CN2785543Y (en) * 2005-04-08 2006-06-07 吴雄 Tectorial stent transporter
CN101357088A (en) * 2008-08-21 2009-02-04 上海交通大学 Banding self-ejection type intervention apparatus conveying system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2089089B1 (en) * 2006-11-30 2010-08-04 William Cook Europe ApS Pusher sheath and deployment device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5415664A (en) * 1994-03-30 1995-05-16 Corvita Corporation Method and apparatus for introducing a stent or a stent-graft
CN2715700Y (en) * 2004-07-28 2005-08-10 微创医疗器械(上海)有限公司 Rapid changing and transporting system for self expansion type medical stent
CN2785543Y (en) * 2005-04-08 2006-06-07 吴雄 Tectorial stent transporter
CN101357088A (en) * 2008-08-21 2009-02-04 上海交通大学 Banding self-ejection type intervention apparatus conveying system

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